blue tang Posted August 26, 2008 Report Share Posted August 26, 2008 I want to change from 150W to 250W DE metal halide bulb. How can I upgrade it ? Quote Link to comment Share on other sites More sharing options...
trualm Posted July 25, 2009 Report Share Posted July 25, 2009 you need to upgrade the ballest and i think that is it as long as the ballest can handle that wattage it should e fine Quote Link to comment Share on other sites More sharing options...
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